mfem::OversetFindPointsGSLIB Class Reference

OversetFindPointsGSLIB enables use of findpts for arbitrary number of overlapping grids. The parameters in this class are the same as FindPointsGSLIB with the difference of additional inputs required to account for more than 1 mesh. More...

#include <gslib.hpp>

Inheritance diagram for mfem::OversetFindPointsGSLIB:

Collaboration diagram for mfem::OversetFindPointsGSLIB:

Public Member Functions
	OversetFindPointsGSLIB ()
	OversetFindPointsGSLIB (MPI_Comm comm_)
void	Setup (Mesh &m, const int meshid, GridFunction *gfmax=NULL, const double bb_t=0.1, const double newt_tol=1.0e-12, const int npt_max=256)
void	FindPoints (const Vector &point_pos, Array< unsigned int > &point_id)
void	Interpolate (const Vector &point_pos, Array< unsigned int > &point_id, const GridFunction &field_in, Vector &field_out)
Public Member Functions inherited from mfem::FindPointsGSLIB
	FindPointsGSLIB ()
	FindPointsGSLIB (MPI_Comm comm_)
virtual	~FindPointsGSLIB ()
void	Setup (Mesh &m, const double bb_t=0.1, const double newt_tol=1.0e-12, const int npt_max=256)
void	FindPoints (const Vector &point_pos)
void	FindPoints (Mesh &m, const Vector &point_pos, const double bb_t=0.1, const double newt_tol=1.0e-12, const int npt_max=256)
	Setup FindPoints and search positions. More...
virtual void	Interpolate (const GridFunction &field_in, Vector &field_out)
void	Interpolate (const Vector &point_pos, const GridFunction &field_in, Vector &field_out)
void	Interpolate (Mesh &m, const Vector &point_pos, const GridFunction &field_in, Vector &field_out)
virtual void	SetL2AvgType (AvgType avgtype_)
virtual void	SetDefaultInterpolationValue (double interp_value_)
virtual void	FreeData ()
virtual const Array< unsigned int > &	GetCode () const
virtual const Array< unsigned int > &	GetElem () const
	Return element number for each point found by FindPoints. More...
virtual const Array< unsigned int > &	GetProc () const
	Return MPI rank on which each point was found by FindPoints. More...
virtual const Vector &	GetReferencePosition () const
	Return reference coordinates for each point found by FindPoints. More...
virtual const Vector &	GetDist () const
virtual const Array< unsigned int > &	GetGSLIBElem () const
virtual const Vector &	GetGSLIBReferencePosition () const

Protected Attributes
bool	overset
unsigned int	u_meshid
Vector	distfint
Protected Attributes inherited from mfem::FindPointsGSLIB
Mesh *	mesh
Mesh *	meshsplit
IntegrationRule *	ir_simplex
struct gslib::findpts_data_2 *	fdata2D
struct gslib::findpts_data_3 *	fdata3D
struct gslib::crystal *	cr
struct gslib::comm *	gsl_comm
int	dim
int	points_cnt
Array< unsigned int >	gsl_code
Array< unsigned int >	gsl_proc
Array< unsigned int >	gsl_elem
Array< unsigned int >	gsl_mfem_elem
Vector	gsl_mesh
Vector	gsl_ref
Vector	gsl_dist
Vector	gsl_mfem_ref
bool	setupflag
double	default_interp_value
AvgType	avgtype

Additional Inherited Members
Public Types inherited from mfem::FindPointsGSLIB
enum	AvgType { NONE, ARITHMETIC, HARMONIC }
Protected Member Functions inherited from mfem::FindPointsGSLIB
virtual void	GetNodeValues (const GridFunction &gf_in, Vector &node_vals)
	Get GridFunction from MFEM format to GSLIB format. More...
virtual void	GetQuadHexNodalCoordinates ()
virtual void	GetSimplexNodalCoordinates ()
virtual void	InterpolateH1 (const GridFunction &field_in, Vector &field_out)
	Use GSLIB for communication and interpolation. More...
virtual void	InterpolateGeneral (const GridFunction &field_in, Vector &field_out)
virtual void	MapRefPosAndElemIndices ()

Detailed Description

OversetFindPointsGSLIB enables use of findpts for arbitrary number of overlapping grids. The parameters in this class are the same as FindPointsGSLIB with the difference of additional inputs required to account for more than 1 mesh.

Definition at line 192 of file gslib.hpp.

Constructor & Destructor Documentation

mfem::OversetFindPointsGSLIB::OversetFindPointsGSLIB ( )

inline

Definition at line 200 of file gslib.hpp.

mfem::OversetFindPointsGSLIB::OversetFindPointsGSLIB ( MPI_Comm  comm_ )

inline

Definition at line 204 of file gslib.hpp.

Member Function Documentation

void mfem::OversetFindPointsGSLIB::FindPoints	(	const Vector &	point_pos,
		Array< unsigned int > &	point_id
	)

Searches positions given in physical space by point_pos. All output Arrays and Vectors are expected to have the correct size.

Parameters

[in]	point_pos	Positions to be found. Must by ordered by nodes (XXX...,YYY...,ZZZ).
[in]	point_id	Index of the mesh that the point belongs to (corresponding to meshid in Setup).

Definition at line 919 of file gslib.cpp.

void mfem::OversetFindPointsGSLIB::Interpolate	(	const Vector &	point_pos,
		Array< unsigned int > &	point_id,
		const GridFunction &	field_in,
		Vector &	field_out
	)

Search positions and interpolate

Definition at line 986 of file gslib.cpp.

void mfem::OversetFindPointsGSLIB::Setup	(	Mesh &	m,
		const int	meshid,
		GridFunction *	gfmax = NULL,
		const double	bb_t = 0.1,
		const double	newt_tol = 1.0e-12,
		const int	npt_max = 256
	)

Initializes the internal mesh in gslib, by sending the positions of the Gauss-Lobatto nodes of the input Mesh object m. Note: not tested with periodic meshes (L2). Note: the input mesh m must have Nodes set.

Parameters

[in]	m	Input mesh.
[in]	meshid	A unique # for each overlapping mesh. This id is used to make sure that points being searched are not looked for in the mesh that they belong to.
[in]	gfmax	(Optional) GridFunction in H1 that is used as a discriminator when one point is located in multiple meshes. The mesh that maximizes gfmax is chosen. For example, using the distance field based on the overlapping boundaries is helpful for convergence during Schwarz iterations.
[in]	bb_t	(Optional) Relative size of bounding box around each element.
[in]	newt_tol	(Optional) Newton tolerance for the gslib search methods.
[in]	npt_max	(Optional) Number of points for simultaneous iteration. This alters performance and memory footprint.

Definition at line 847 of file gslib.cpp.

Member Data Documentation

Vector mfem::OversetFindPointsGSLIB::distfint

protected

Definition at line 197 of file gslib.hpp.

bool mfem::OversetFindPointsGSLIB::overset

protected

Definition at line 195 of file gslib.hpp.

unsigned int mfem::OversetFindPointsGSLIB::u_meshid

protected

Definition at line 196 of file gslib.hpp.

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The documentation for this class was generated from the following files:

• fem/gslib.hpp
• fem/gslib.cpp